Hydrodynamics of a three-phase fluidized bed containing low-density particles

Journal Article · Wed Mar 01 04:00:00 EST 1989 · A.I.Ch.E. J.; (United States)

DOI:https://doi.org/10.1002/aic.690350303· OSTI ID:5939794

Tang, W T; Fan, L S

Experiments were conducted to study the hydrodynamics of a gas-liquid-solid fluidized bed containing low-density particles. The density and size of the particles employed were comparable to those ordinarily encountered in fluidized-bed bioreactors for either wastewater treatment or fermentation. A dual resistivity probe and a conductivity probe were employed to study the axial holdup of gas and liquid phases and the bubble size distribution. The behavior of the axial holdup distribution for solid, gas, and liquid phases is reported. A mechanistic model, based on solids entrainment and deentrainment mechanisms by bubbles, is developed to describe the behavior of the axial solids holdup distribution. The model is shown to satisfactorily account for the experimental data.

• Research Organization: Ohio State Univ., Columbus, OH (USA). Dept. of Chemical Engineering
• OSTI ID: 5939794
• Journal Information: A.I.Ch.E. J.; (United States), Journal Name: A.I.Ch.E. J.; (United States) Vol. 35:3; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400 -- Engineering-- Heat Transfer & Fluid Flow
420900* -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
BIOCONVERSION
BIOREACTORS
BUBBLES
DATA
DENSITY
EXPERIMENTAL DATA
FERMENTATION
FLUID MECHANICS
FLUIDIZED BEDS
FLUIDS
GASES
HYDRODYNAMICS
HYDROGEN COMPOUNDS
INFORMATION
LIQUID WASTES
LIQUIDS
MECHANICS
NUMERICAL DATA
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE STUDIES
PHYSICAL PROPERTIES
SIZE
SOLIDS
WASTE WATER
WASTES
WATER
WATER TREATMENT PLANTS